-Item Name: HumiSeal® UV40
-Manufacturer: HumiSeal
-Technologies: UV Curable Acrylated Polyurethane Conformal Coating
-Color: Not specified
-Cure Type: UV Cure with Secondary Moisture Cure (2-3 days)
-Package Size: Contact Techniq VN for details.
-Shelf Life: 12 months
HumiSeal® UV40 is a single-component, high-solids, acrylated polyurethane conformal coating with excellent chemical resistance, surface hardness, flexibility, and moisture resistance. It is tack-free after UV exposure and has a secondary moisture cure for unexposed areas within 2-3 days. The coating fluoresces under UV light for inspection and can be applied using selective coating equipment.
| Property | Value |
|---|---|
| Density | 1.10 ± 0.05 g/cm³ |
| Minimum Solids Content | 95% |
| Viscosity (Fed-Std-141, Meth. 4287) | 650 ± 150 cP |
| Recommended Coating Thickness | 25 – 125 µm |
| Glass Transition Temperature (Tg, DSC) | 45°C |
| Coefficient of Thermal Expansion (TMA) | 85 ppm/°C (Below Tg), 197 ppm/°C (Above Tg) |
| Modulus (DMA) | 10,360 MPa @ -40°C, 4,280 MPa @ 25°C, 66 MPa @ 80°C |
| Thermal Shock (-65°C to 125°C, MIL-I-46058C) | Pass |
| Flammability (UL-94) | V-0 |
| RTI (UL-746E) | 135°C |
| Dielectric Withstand Voltage (MIL-I-46058C) | >1500V |
| Dielectric Constant (ASTM D150-98, 1MHz, 25°C) | 2.5 |
| Dielectric Constant (ASTM D2520, 10GHz, 22°C) | 3.21 |
| Dissipation Factor (ASTM D150-98, 1MHz, 25°C) | 0.01 |
| Insulation Resistance (MIL-I-46058C) | 8.0 × 10¹⁴ Ω (800TΩ) |
| Moisture Insulation Resistance (MIL-I-46058C) | 4.7 × 10¹⁰ Ω (47GΩ) |
| Fungus Resistance (ASTM G21) | Pass |
| Chemical Resistance | Excellent |
| Curing Method | Minimum Dose (J/cm²) | Minimum Irradiance (W/cm²) | Maximum Dose (J/cm²) | Maximum Irradiance (W/cm²) |
|---|---|---|---|---|
| Arc System | UVA: 1.5, UVB: 1.5, UVC: 0.4 | UVA: 0.5, UVB: 0.5, UVC: 0.1 | UVA: 2.8, UVB: 2.7, UVC: 0.8 | UVA: 0.9, UVB: 0.8, UVC: 0.2 |
| Microwave System | UVA: 2.0, UVB: 2.0, UVC: 0.4 | UVA: 0.7, UVB: 0.7, UVC: 0.15 | UVA: 3.0, UVB: 3.0, UVC: 0.6 | UVA: 1.15, UVB: 1.15, UVC: 0.24 |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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